Results 21 to 30 of about 4,210,592 (370)

FastTree 2 – Approximately Maximum-Likelihood Trees for Large Alignments

open access: yesPLoS ONE, 2010
Background We recently described FastTree, a tool for inferring phylogenies for alignments with up to hundreds of thousands of sequences. Here, we describe improvements to FastTree that improve its accuracy without sacrificing scalability.
M. Price, Paramvir S. Dehal, A. Arkin
semanticscholar   +1 more source

Dessins d'enfants and Hubbard Trees [PDF]

open access: yes, 1999
We show that the absolute Galois group acts faithfully on the set of Hubbard trees. Hubbard trees are finite planar trees, equipped with self-maps, which classify postcritically finite polynomials as holomorphic dynamical systems on the complex plane. We
Pilgrim, Kevin
core   +3 more sources

Assessment and valorization of treated and non-treated olive mill wastewater (OMW) in the dry region

open access: yesInternational Journal of Recycling of Organic Waste in Agriculture, 2018
Purpose The quantity of Olive by-products does not stop increasing and a water shortage that threatens the olive tree culture; require a serious valuation of these by-products.
Haifa Rajhi   +3 more
doaj   +1 more source

Transcriptome analysis identifies genes involved in the somatic embryogenesis of Eucalyptus

open access: yesBMC Genomics, 2020
Background Eucalyptus, a highly diverse genus of the Myrtaceae family, is the most widely planted hardwood in the world due to its increasing importance for fiber and energy.
Yufei Xiao   +6 more
doaj   +1 more source

Rosa funingensis (Rosaceae), a new species from Yunnan, China [PDF]

open access: yesPhytoKeys, 2023
A new species Rosa funingensis and its variant R. funingensis f. rosea, both collected from Yunnan Province, China, are, for the first time, documented and illustrated in this study.
Ling-Na Zheng   +7 more
doaj   +3 more sources

CGIAR Research Program on Forests, Trees and Agroforestry - Plan of Work and Budget 2020 [PDF]

open access: yes, 2020
There were no significant changes in 2019 to FTA’s theory of change1. FTA plans all its work on the basis of its operational priorities. These, in turn, focusresearch towards major development demands and knowledge gaps, orienting FTA towards the ...
CGIAR Research Program on Forests, Trees and Agroforestry
core  

Gelidocalamus xunwuensis (Poaceae, Bambusoideae), a new species from southeastern Jiangxi, China

open access: yesPhytoKeys, 2017
Gelidocalamus xunwuensis W.G.Zhang & G.Y.Yang, a new species collected from Xunwu County of Jiangxi Province in China, is described and illustrated. The new species is similar to G. stellatus in the habit, but differs by internodes sparsely hairy
Wen-Gen Zhang   +4 more
doaj   +3 more sources

Salinity tolerance improvement of in vitro propagated Paulownia tomentosa using proline

open access: yesBulletin of the National Research Centre, 2020
Background Paulownia tomentosa has been used as an ornamental plant and is still vastly used for this objective and can be utilized for the production of energy, wooden building materials, and paper pulp.
Nora Muhammad Youssef   +2 more
doaj   +1 more source

Categorizing Ideas about Trees: A Tree of Trees

open access: yesPLoS ONE, 2013
The aim of this study is to explore whether matrices and MP trees used to produce systematic categories of organisms could be useful to produce categories of ideas in history of science. We study the history of the use of trees in systematics to represent the diversity of life from 1766 to 1991.
Marie Fisler, Guillaume Lecointre
openaire   +4 more sources

The height of multiple edge plane trees [PDF]

open access: yes, 2015
Multi-edge trees as introduced in a recent paper of Dziemia\'nczuk are plane trees where multiple edges are allowed. We first show that $d$-ary multi-edge trees where the out-degrees are bounded by $d$ are in bijection with classical $d$-ary trees.
Heuberger, Clemens   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy